Other Income (Expense), Net - Schedule of Other Income (Expense), Net (Details) - CAD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Other Income And Expenses [Abstract]
Fair value changes on other financial assets	$ (86)	$ (279,432)	$ (300,940)	$ (195,280)
Fair value changes on liability arising from Acreage Arrangement		288,000	47,000	438,000
Fair value changes on unsecured senior notes	(13,789)	30,024	(23,401)	80,736
Fair value changes on warrant derivative liability	864	194,545	26,229	510,802
Fair value changes on acquisition related contingent consideration and other	(16,285)	31	24,140	(168)
Charges related to settlement of unsecured senior notes	14,480		(4,688)
Interest income	4,924	2,755	8,874	5,402
Interest expense	(30,471)	(26,646)	(57,372)	(51,210)
Foreign currency gain (loss)	(6,859)	882	(11,794)	1,912
Gain (loss) on disposal/acquisition of consolidated entity	1,702	686	2,081	(1,653)
Other income (expense), net	(2,324)	(15,024)	(3,551)	(12,054)
Other income (expense), net	$ (47,844)	$ 195,821	$ (293,422)	$ 776,487